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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
99

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

99) The operating pressure for refrigerating units using R-12 as a refrigerant is

2 bar

8 bar

15 bar

30 bar

Answer is:

8 bar

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

100) The specific humidity during heating and humidification process.

remains constant

increases

decreases

none of these

Answer is:

increases

101) The superheated vapour region, in a pressure enthalpy chart, is represented by the space

to the left of saturated liquid line

to the right of saturated liquid line

between the saturated liquid line and saturated vapour line

none of the above

Answer is:

between the saturated liquid line and saturated vapour line

102) The minimum temperature to which water can be cooled in a cooling tower is

dew point temperature of air

wet bulb temperature of air

dry bulb temperature of air

ambient air temperature

Answer is:

wet bulb temperature of air

103) The index which corelates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as

mean radiant temperature

effective temperature

dew point temperature

none of these

Answer is:

effective temperature

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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